67038730 has 16 divisors (see below), whose sum is σ = 131639904. Its totient is φ = 24377680.

The previous prime is 67038641. The next prime is 67038739. The reversal of 67038730 is 3783076.

It is not an unprimeable number, because it can be changed into a prime (67038739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 304612 + ... + 304831.

It is an arithmetic number, because the mean of its divisors is an integer number (8227494).

Almost surely, 2^67038730 is an apocalyptic number.

67038730 is a deficient number, since it is larger than the sum of its proper divisors (64601174).

67038730 is a wasteful number, since it uses less digits than its factorization.

67038730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609461.

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 67038730 is about 8187.7182413661. The cubic root of 67038730 is about 406.2330555457.

The spelling of 67038730 in words is "sixty-seven million, thirty-eight thousand, seven hundred thirty".